SINGAPORE--Big data can help companies gain a competitive advantage, but knowing the context behind the data collection is important to avoid making spurious decisions. "For [Singapore], it's a new natural resource--which we don't have much of," said Janet Ang, managing director of IBM Singapore. "For companies, data is the competitive advantage. We've heard that slogan for a long time, but big data will give you another level of insight." Speaking on the panel at ZDNet Asia's Big Debate held here Wednesday, Ang added about 90 percent of the world's data right now was created in the last two years alone, reflecting the exponential increase in data creation. Big Debate panelists Tan Eng Pheng , Infocomm Development Authority of Singapore Jude Yew , National University of Singapore Janet Ang , IBM Singapore James Woo , The Farrer Park Company "Rubbish in, rubbish out" The er...